package com.example.blog.web.adminController;

import com.example.blog.pojo.Type;
import com.example.blog.service.TypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.jws.WebParam;
import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class TypeController {
    @Autowired
    private TypeService typeService;
    @GetMapping("/types")
    public String types(@PageableDefault(size = 6,sort = {"id"},
            direction = Sort.Direction.ASC)Pageable pageable, Model model){
        model.addAttribute("page",typeService.listType(pageable));
        return "admin/types";
    }
    @GetMapping("/types/{id}/editInput")
    public String editInput(@PathVariable Long id,Model model){
        model.addAttribute("type",typeService.getType(id));
        return "admin/type-input";
    }
    @GetMapping("/types/{id}/delete")
    public String deleteType(@PathVariable Long id,RedirectAttributes attributes){
        attributes.addFlashAttribute("message","删除成功");
       typeService.deleteType(id);
        return "redirect:/admin/types";
    }

    @GetMapping("/types/input")
    public String typeInput(Model model)
    {
        model.addAttribute("type",new Type());
        return "admin/type-input";
    }
    @PostMapping("/types1")
    //@Valid --校验 BindingResult 接受校验的message信息
    public String post(@Valid Type type, BindingResult result, RedirectAttributes attributes){
        if(typeService.getTypeByName(type.getName()) !=null){
            attributes.addFlashAttribute("message","不能重复添加");
            return "redirect:/admin/types/input";
        }
        if(result.hasErrors()){
            attributes.addFlashAttribute("message","输入不能为空");
            return "redirect:/admin/types/input";
        }
        Type type1 = typeService.saveType(type);
        if(type1 == null){
            attributes.addFlashAttribute("message","操作失败");
        }
        else {
            attributes.addFlashAttribute("message","操作成功");
        }
        return "redirect:/admin/types";
    }
}
